<!DOCTYPE html>
<!--
Copyright (c) 2016 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<link rel="import" href="/tracing/base/base.html">

<script>
'use strict';

/**
 * @fileoverview Provides the Sample class.
 */
tr.exportTo('tr.model', function() {
  /**
   * A ProfileTree represents all call stack we collect in sampling
   * in the form of a tree.
   * By traversing from root to a leaf we get a call stack
   * that belongs to some samples we collect.
   */
  function ProfileTree() {
    this.startTime_ = undefined;
    this.endTime_ = undefined;
    this.tree_ = new Map();
    this.pid_ = -1;
    this.tid_ = -1;
  }

  ProfileTree.prototype = {
    __proto__: Object.prototype,

    get pid() {
      return this.pid_;
    },

    set pid(value) {
      this.pid_ = value;
    },

    get tid() {
      return this.tid_;
    },

    set tid(value) {
      this.tid_ = value;
    },

    get tree() {
      return this.tree_;
    },

    get startTime() {
      return this.startTime_;
    },

    set startTime(value) {
      this.startTime_ = value;
      this.endTime_ = value;
    },

    get endTime() {
      return this.endTime_;
    },

    set endTime(value) {
      this.endTime_ = value;
    },

    add(node) {
      if (this.tree_.has(node.id)) {
        throw new Error('Conflict id in the profile tree.');
      }
      this.tree_.set(node.id, node);
      return node;
    },

    getNode(nodeId) {
      return this.tree_.get(nodeId);
    }
  };

  return {
    ProfileTree,
  };
});
</script>
